Wuthering Heights Chapter 13
Edgar nurses Catherine for the next two months. During this time, it is revealed that Catherine is pregnant. Edgar longs for a male heir, to prevent Heathcliff and Isabella from inheriting the Grange. Six weeks after she runs away, Isabella sends a letter to Edgar, announcing her marriage and begging forgiveness. He does not reply. After that, a distraught Isabella sends a letter to Nelly, questioning the humanity of Heathcliff. She tells Nelly that they are living at Wuthering Heights and begs for a visit.
Wuthering Heights Chapter 12
After three days of starving herself, Catherine agrees to eat. She is distraught that she is dying and Edgar has not come to her, begging forgiveness. In a state of delirium, Catherine talks about her childhood with Heathcliff and speaks of her impending death. When Nelly refuses to open the window, Catherine staggers to it, throws it open, and claims to see Wuthering Heights.
Wuthering Heights Chapter 11
Nelly ventures back to Wuthering Heights to talk with Hindley; instead, she encounters Hareton, who has no memory of her. Hareton greets her with a barrage of stones and curses — actions he learned from Heathcliff. When Heathcliff appears, Nelly runs away. The next day at the Grange, Nelly witnesses an embrace between Heathcliff and Isabella. When Catherine confronts Heathcliff about this, he tells her "I'm not your husband: you needn't be jealous of me." This leads Heathcliff to reveal that he knows Catherine has wronged him and that he will be revenged.
Wuthering Heights Chapter 10
Heathcliff reappears suddenly one September afternoon, approximately six months after Catherine and Edgar marry. Nelly does not tell Catherine who the visitor is, but she does tell Edgar. Edgar suggests that Catherine visit the kitchen, but she insists on entertaining in the parlor. Catherine's excitement over Heathcliff's return was not the reception he expected, but he is pleased to receive it. Their words and actions reveal that Catherine and Heathcliff love each other. Heathcliff surprises everyone by stating that he is staying at Wuthering Heights.
Wuthering Heights Chapter 9
In a drunken rage, Hindley accidentally drops Hareton over the banister, but luckily, Heathcliff is present and catches the baby. Later, in the kitchen, Catherine speaks to Nelly. Thinking they are alone, Catherine tells Nelly that Edgar asked her to marry him and that she accepted. Catherine explains that she cannot marry Heathcliff because Hindley has degraded him so much; however, she expresses her love for Heathcliff. She prefaces her remarks with "It would degrade me to marry Heathcliff," and these are the words he overhears. Catherine continues, that Heathcliff will never know how much she loves him and that "he's more myself than I am." Heathcliff leaves Wuthering Heights that night and disappears for three years. Catherine spends the entire night outdoors in the rain. She comes down with a bad chill, catches a fever, and almost dies. The Lintons allow her to recuperate at the Grange, but both Mr. and Mrs. Linton take the fever and die.